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Conference Paper: A numerical investigation of effects of a moving operator on airborne contamination removal in a cleanroom

TitleA numerical investigation of effects of a moving operator on airborne contamination removal in a cleanroom
Authors
KeywordsCleanroom
Airflow simulation
Moving operator
Computational fluid dynamics (CFD)
Issue Date2014
Citation
Indoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate, 2014, p. 424-431 How to Cite?
AbstractThis study deals with the influence of inlet airflow velocity on airflow distribution in a unidirectional type cleanroom taking into account a moving operator. Computational fluid dynamics was employed. The standard k-ε turbulence model was used to resolve the flow field and the trajectory of contaminants which were represented by a large number of particles was predicted by a Lagrangian approach. Dynamic meshes were applied to simulate the movement of the moving operator. A characteristic time to quantify the stabilization of the airflow was introduced. Local turbulence and recirculation zones were observed around the operator and the worktable due to the movement of the operator, which may trap contaminants and affect the cleanliness of the cleanroom. The contamination removal efficiency can be improved by increasing the airflow velocity from 0.2 m/s to 0.5 m/s, but the improvement becomes insignificant when the velocity is over 0.6 m/s.
Persistent Identifierhttp://hdl.handle.net/10722/255963

 

DC FieldValueLanguage
dc.contributor.authorCherniakov, Evgeny-
dc.contributor.authorFu, Sauchung-
dc.contributor.authorSze To, Ginnam-
dc.contributor.authorChao, Christopher Yh-
dc.date.accessioned2018-07-16T06:14:12Z-
dc.date.available2018-07-16T06:14:12Z-
dc.date.issued2014-
dc.identifier.citationIndoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate, 2014, p. 424-431-
dc.identifier.urihttp://hdl.handle.net/10722/255963-
dc.description.abstractThis study deals with the influence of inlet airflow velocity on airflow distribution in a unidirectional type cleanroom taking into account a moving operator. Computational fluid dynamics was employed. The standard k-ε turbulence model was used to resolve the flow field and the trajectory of contaminants which were represented by a large number of particles was predicted by a Lagrangian approach. Dynamic meshes were applied to simulate the movement of the moving operator. A characteristic time to quantify the stabilization of the airflow was introduced. Local turbulence and recirculation zones were observed around the operator and the worktable due to the movement of the operator, which may trap contaminants and affect the cleanliness of the cleanroom. The contamination removal efficiency can be improved by increasing the airflow velocity from 0.2 m/s to 0.5 m/s, but the improvement becomes insignificant when the velocity is over 0.6 m/s.-
dc.languageeng-
dc.relation.ispartofIndoor Air 2014 - 13th International Conference on Indoor Air Quality and Climate-
dc.subjectCleanroom-
dc.subjectAirflow simulation-
dc.subjectMoving operator-
dc.subjectComputational fluid dynamics (CFD)-
dc.titleA numerical investigation of effects of a moving operator on airborne contamination removal in a cleanroom-
dc.typeConference_Paper-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-84924658001-
dc.identifier.spage424-
dc.identifier.epage431-

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